5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Compression Results

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Old Aug 23, 2007 | 05:16 PM
  #1  
gearbanger's Avatar
gearbanger
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Default Compression Results

OK SO HERE THEY ARE

#1-131

#2-135

#3-127

#4-134

#5-130

#6-127

#7- 130

#8-125

i plan on getting a wet nitrous kit for my car.. are these numbers good enough?


thank

Old Aug 23, 2007 | 05:22 PM
  #2  
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Default RE: Compression Results

Just did mine...got 155 and 162...the only ones I tested because my headers are in the way and I was lazy, but i'm sure my other pistons are in the same range give or take a bit.
Old Aug 23, 2007 | 05:33 PM
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Default RE: Compression Results

time for a rebuild gearbanger.... those numbers are kinda low
Old Aug 23, 2007 | 05:56 PM
  #4  
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Default RE: Compression Results

tad low, but still within an acceptable range of each other. i wouldn't be afraid to put a 125 wet shot on there.
Old Aug 23, 2007 | 06:12 PM
  #5  
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Default RE: Compression Results

They are very conisistent, but are low. If this is you daily driver and you NEED this car, or dont really have the money right now if somthing breaks, i would not spray. You could spray and be fine for a while, but you need to decide if you can take that chance.
Old Aug 23, 2007 | 06:40 PM
  #6  
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Default RE: Compression Results

so they are a tad low..... this is my DD... man this kinds sucks.... my goal for 12's by the end of the seaon are not sounding to well[>:]
Old Aug 23, 2007 | 07:05 PM
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Default RE: Compression Results

not with that engine.....I bet there are 100k plus on that engine...it may last for years...months if you slap a nos kit on it..
ORIGINAL: gearbanger

so they are a tad low..... this is my DD... man this kinds sucks.... my goal for 12's by the end of the seaon are not sounding to well[>:]
Old Aug 23, 2007 | 07:29 PM
  #8  
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Default RE: Compression Results

ORIGINAL: 2 kwik

not with that engine.....I bet there are 100k plus on that engine...it may last for years...months if you slap a nos kit on it..
ORIGINAL: gearbanger

so they are a tad low..... this is my DD... man this kinds sucks.... my goal for 12's by the end of the seaon are not sounding to well[>:]
it has 140K
Old Aug 23, 2007 | 07:40 PM
  #9  
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Default RE: Compression Results

What should your compression be at? I might do mine this weekend.
Old Aug 23, 2007 | 07:51 PM
  #10  
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Default RE: Compression Results

I would, at this point check and see if someone installed a non-stock camshaft.
Readings like you got could be as a result of some extra duration in there, that will lower the readings of test.......



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